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Sun protection

Sun protection plays a key role in preserving your skin’s health and appearance by blocking harmful UV rays. These rays cause photoaging, the appearance of hyperpigmentation, and increase the risk of skin cancer. By choosing appropriate protection, you shield your skin from environmental damage while maintaining its radiance and elasticity.

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FAQ about sun protection

How long before sun exposure should you apply sunscreen?
It is generally recommended to apply sunscreen About 30 minutes before sun exposure due to how sun protection products are tested. Protocols require 15 to 20 minutes of drying time before assessing sun protection factor to ensure water resistance, but no evidence suggests that sunscreen efficacy is delayed.
How often should you reapply sunscreen during the day?
It depends on the activity. For prolonged exposure at a pool or beach, reapply the sunscreen every two hours. For a commute from home to the office, one morning application is sufficient.
Does SPF protect against UVA rays?
The SPF measures a sunscreen’s ability to filter erythemal UV rays, which consist of 85% UVB and 15% UVA.
After several days of exposure, is it possible to reduce the applied SPF?
According to some studies, applying sunscreen for several consecutive days before UV exposure may provide a baseline level of protection for the skin. This could suggest it is possible to use an SPF 30 product after several days of SPF 50 use. However, research on this topic remains insufficient, and as a precaution, we recommend continuing to use a high SPF throughout the exposure period.
Are tinted SPF products sufficient to protect the skin?
Tinted formulas with SPF provide additional protection. Alone they do not provide complete, long-lasting sun protection because they are not applied in sufficient quantity.
Should you apply sun protection in winter?
Yes, we recommend applying a sun protection throughout the year. Although UV levels drop in winter, remaining exposure can accelerate photoaging and worsen photosensitive conditions such as hyperpigmentation or acne.
Are waterproof sunscreens truly water-resistant?
Waterproof sunscreens offer limited water resistance to a single swim and require reapplication after swimming.
Does layering multiple SPFs increase sun protection?
No, SPFs cannot be added together. Combining skincare with sunscreen can help. You need a certain amount to reach the protection level stated on the label.
Is sunscreen necessary under an umbrella?
Yes, sunscreen is necessary under an umbrella because UV rays reflect off sand and water.
What are the risks associated with using expired sunscreen?
An expired sunscreen has lost its ability to reflect and absorb UV and no longer protects against sun exposure. It may also cause skin reactions.